adj.无限的；无穷的；无边无际的
His boundless generosity moved us deeply. 他的无限的慷慨深深地感动了我们。
A fine example has boundless power. 榜样的力量是无穷的。
A small boat was drifting on the boundless sea. 在无边无际的海面上漂着一只小船。
